Bishop has shot Xavier in the head and unbeknownst to the X-Men, the Acolytes have arrived on the scene, stopped time and spirited their mentor away. Exodus tries to repair the damage to Xavier's brain but he still appears to have very little brain activity. But inside of Xavier's head, he is reliving some of his earliest moments with the original X-Men. Seeking help in stabilizing Xavier's deteriorating condition, Exodus calls on Professor X's longest friend and greatest enemy.